Effect of Current Pulse Delay on Initial Propagation Speed

A Pinsky-Rinzel model of a neighbor-to-neighbor chain of 10 neurons is simulated. The initial speed is computed from propagation of a spike from the first to the second neuron.

A current pulse of duration 0.05 sec and magnitude 0.5 µA/cm² is injected into the soma initially for all neurons at 0.5 second. After a delay of τ, a second pulse is injected into neuron 1.

 

Initial Speed as a Function of Current Pulse Delay  
Data files
   
   

 


 

Anomalies at τ = 12 sec.